I recently purchased a used Omega D55 with Chromega color head. I've been using a Beseler 23 C dichoric for B/W printing. Both the Beseler and Chromega are noted in paper data sheets that Kodak CC filters are the equilivant and Magenta 200 equals a grade 5. However, the Chromega Magenta filter only goes to M-171. The Durst filter valuses go to 170. Can somebody enlighten me: DOES CHROMEGA USE THE KODAK OR DURST FILTERING VALUES?